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			Check out this thread: http://986forum.com/forums/general-discussions/51283-does-anyone-know-vss-wire-02-bose.html 
Scroll down to post 13 and you will see  picture of the unit with the wire harness connected.
 
I used this for a reference on the wiring:
http://www.renntech.org/forums/topic/19616-porsche-boxster-avic-d3-installation-instructions/ 
You will need to make a donation to Renntech to access this file, but it is worth it.
 
This may also help.
Pelican Technical Article: Changing Your Boxster Stereo Head Unit / Installing Boxster Ipod Integration - 986 / 987 
It has been a while since I did this project, but if I recall correctly, the blue wire with the white stripe on the red connector sends the signal to power on the amplifier and the antenna.
		
				__________________2000 Arctic Silver/Black, Hard Top, On Board Computer
 PNP Rear Speakers, HAES 6-Channel Amp, Avic Z140BH,
 Painted Bumperettes, 2004 (OEM) Top, Homelink integrated in dash with Targa switch, 997 Shifter, Carrera Gauge Cluster with silver gauge faces, heated 997 adaptive sports seats, Litronics, silver console
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